Merge p11-cleanup-residuals into dev (P11 residual cleanup: stale-id docs, test EntryKey shapes, dead CSS)

DeepDrftPublic/wwwroot/styles/deepdrft-styles.css

@@ -375,15 +375,6 @@ h2, h3, h4, h5, h6,
     word-break: break-all;
 }
 
-/* display:contents so the anchor wraps the card's cover and title without
-   introducing its own box — the container's positioning context and the
-   content column's flex layout are both preserved. */
-.deepdrft-track-card-link {
-    display: contents;
-    text-decoration: none;
-    color: inherit;
-}
-
 @media (max-width: 419.98px) {
     .deepdrft-track-detail-meta {
         flex-direction: column;